Siemens SIPROTEC 7UM62 User Manual

Appendix
A.3 Connection Examples
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
554
Figure A-6 Busbar System with Low-resistance Earthing
Transformer connections to three voltage transformers (phase-to-earth voltages) and in each
case three CTs - earth fault detection as differential current measuring by two CT sets;
detection of displacement voltage at broken delta winding (da–dn) as additional criterion.

Siemens SIPROTEC 7UM62 Specifications

General

Brand	Siemens
Model	SIPROTEC 7UM62
Category	Protection Device
Language	English